1. Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA 94720, USA.
2. Life and Environmental Sciences Unit, University of California, Merced, CA 95343, USA.
3. Land, Air, and Water Resources, One Shields Avenue, Davis, CA 95616, USA.
4. Climate Change Program Office, Office of the Chief Economist, U.S. Department of Agriculture (USDA), 14th and Independence SW, Washington, DC 20013, USA.
5. Board on International Scientific Organizations, National Academy of Sciences, 500 Fifth Street NW, Washington, DC 20001, USA.
6. Plant and Soil Science, Chemistry and Biochemistry, Civil and Environmental Engineering, and Marine Science and Policy, University of Delaware, Newark, DE 19716, USA.